Anim State Notifies Don't Consistently Fire Begin/End Events for Looping Anim Sequences

UE - Anim - Runtime - Anim Blueprints - Jun 9, 2025

If you have an Animation Notify State and set it up on an animation to start at the exact beginning of the anim sequence and finish exactly at the end (I have attached a picture of this). It doesn't ...

Critical Errors when replacing references of blueprints

Tools - Mar 26, 2015

If an instance of a blueprint is in the scene selecting it and another blueprint and choosing the option to Replace references of the one in scene with the other will cause Critical Failure errors. ...

Re-importing animations from .fbx created in blender stops animation from correctly animating

OLD - Anim - Feb 4, 2016

Re-importing animations from .fbx created in blender stops animation from correctly animating. ...

Custom functions can call Set Timer nodes

UE - Gameplay - Blueprint - Nov 11, 2015

Custom functions can call Set Timer nodes. There are no other time related functions that can be called through custom functions. Calling a timer through custom functions seems to lead to editor cra ...

Render Target as Material Image in UMG is Clipped when setting Fullscreen in Standalone (Alt+Enter)

UE - Editor - UI Systems - Jun 1, 2015

Render Target Material is clipped as an Image within UMG when attempting to set to fullscreen while playing in Standalone mode. The interesting thing I noticed about this bug is that the issue is n ...

EDITOR: CRASH: Saving a project while an auto save is occurring will crash the Editor.

Tools - Aug 1, 2014

If a user initiates a save using Ctrl+S while an autosave is in progress, the Editor will crash. CRASHREPORT: [Link Removed] ...

Actors with Net Load On Client disabled still appear on Clients when Use Single Process is disabled

UE - Networking - Aug 3, 2015

Actors with Net Load On Client disabled still appear on Clients when Use Single Process is disabled. Does NOT occur in packaged projects. Test project included. Set Use Single Process to false in E ...

Live: Copy & Pasting ForEachLoops will cause them to retain information from the original

UE - Gameplay - Blueprint - Nov 3, 2014

If the user copies and then pastes a For Each Loop the loop will retain previous data such as the array type and will cause compiling errors. ...

Get Blackboard Value with null input causes crash

UE - Gameplay - Blueprint - Jan 6, 2015

Getting a blackboard value as actor and setting an actor to that on tick causes crash. The real issue here is that you can use a function in BP (in this case `UBTFunctionLibrary::GetBlackboardValue ...